[rolling18]

Now that tax return time has come where I get some of my own money back,
Im onto my next mod LSD!!

im thinking OS giken after research on here
if you are in OR or WA, where did you get your installed and how much?

thanks allot for your help, i'm looking to do this fairly soon!

[spdu4ea]

OS Giken

[hun77777]

there are number of posts that explained about difference between LSDs from my understanding, for dd street usage any will do the trick but if you wanna go hardcore, you can go little more hardcore than quaife or wavetrac...

[rolling18]

Originally Posted by spdu4ea

OS Giken

thanks for that info any others? that arnt mentioned regularly?

[Craig@SupremePower]

i like the wavetrac units...

[dzenno]

I've got a 6mt dec 2007 production E90...welded or bolted ring gear? Who to order from?

[Donald-335i]

gonna get the wavetrac unit.

[Bomis]

I really love my wavetrac, its an awesome upgrade.....

[Sparky66]

Quaife = Fit and forget complete service free life
Wavetrac = eventual replacement of friction plates

[jippii ensio]

The standard friction plates that come with the differential last the lifetime of the differential. The differential has a lifetime warranty.

From Autotech:
"Autotech is very excited with the positive feedback they have already received from Wavetracs already out in the field for other applications, including a 740+ WHP drag car. Our testing has shown that the Wavetrac works as well as (or better than) a Quaife, and feels slightly more aggressive. The Wave Design Center Pack really does work, and provides traction to the wheel with grip, even if the other wheel is in the air. The Wavetrac is much quieter than a Quaife in situations where the Quaife is noisy, such as hard turns from a stop under power, and we expect the same results with winter driving. The warranty is lifetime, even when raced, and also transferable.

In fact, we are so excited and confident about the new features that we are replacing the Quaifes in all of our cars with the Wavetrac units, since they should perform better in winter driving when one-wheel-on-ice is very common, and it's a (noisy) nuisance when the Quaife goes 'open' in that situation."

If you don't like your LSD to go open, Wavetrac is your choice.

[uberschnell]

Originally Posted by jippii ensio

The standard friction plates that come with the differential last the lifetime of the differential. The differential has a lifetime warranty.

From Autotech:
"Autotech is very excited with the positive feedback they have already received from Wavetracs already out in the field for other applications, including a 740+ WHP drag car. Our testing has shown that the Wavetrac works as well as (or better than) a Quaife, and feels slightly more aggressive. The Wave Design Center Pack really does work, and provides traction to the wheel with grip, even if the other wheel is in the air. The Wavetrac is much quieter than a Quaife in situations where the Quaife is noisy, such as hard turns from a stop under power, and we expect the same results with winter driving. The warranty is lifetime, even when raced, and also transferable.

In fact, we are so excited and confident about the new features that we are replacing the Quaifes in all of our cars with the Wavetrac units, since they should perform better in winter driving when one-wheel-on-ice is very common, and it's a (noisy) nuisance when the Quaife goes 'open' in that situation."

If you don't like your LSD to go open, Wavetrac is your choice.

I've had the quaife for almost 2 years with several track sessions under the belt. Never once have I experienced any problem whatsoever with it going "open", even on down slope off-camber turns. How many of you are honestly going wheels off the ground in a turn while accelerating during your HPDE sessions? And you would have to be completely off the ground in order for this to possibly happen. And noise? Never heard it.

If you want good advice call Harold at HP autowerks, they sell both and he has tons of track time in the 335.

[Diggy Diggy]

Quafe. They've been around for a LONG time and have been proven.

[Synergy 69]

how much are the OS Giken?

[zsapphire7]

how long is the "lifetime" warranty on the wavertac? Is it 3-4 years? or 10? The "lifetime" of the product will determine the warranty period.

[spdu4ea]

Originally Posted by Synergy 69

how much are the OS Giken?

~$2K (non welded ring gear). By far the most tuneable LSDs out there, from silky smooth street to wild drifter. To get the most of of them, you'll want a very good shop to set it up (and if you're a perfectionist, be willing to fine tune it to your needs).

http://www.motoiq.com/magazine_artic...ferential.aspx


edit: OP since you're in Portland, you might try giving HPF a call if that's the route you want to take. They use the OS Giken on their stage 4 M3s...

[dlbrooks18]

I went with the Quaife and still enjoying after 9 months, it really changed the feel of the car for the better with the much improved traction.

[rolling18]

Originally Posted by MteK

If you want good advice call Harold at HP autowerks, they sell both and he has tons of track time in the 335.

Funny you mention that. Hee's who Im talking with about what to buy
thanks! good to know hees reccomended

Originally Posted by hun77777

there are number of posts that explained about difference between LSDs from my understanding, for dd street usage any will do the trick but if you wanna go hardcore, you can go little more hardcore than quaife or wavetrac...

yes i have found those threads and were VERY informative, i guess i kinda think you cant have tooo much info on these things as opinions always change

Originally Posted by Synergy 69

how much are the OS Giken?

about $2100 plus install

Originally Posted by zsapphire7

how long is the "lifetime" warranty on the wavertac? Is it 3-4 years? or 10? The "lifetime" of the product will determine the warranty period.

isnt "lifetime" as long as you own the product? or the life of the humanoid who bought it (for original purchaser)

Originally Posted by spdu4ea

~$2K (non welded ring gear). By far the most tuneable LSDs out there, from silky smooth street to wild drifter. To get the most of of them, you'll want a very good shop to set it up (and if you're a perfectionist, be willing to fine tune it to your needs).

http://www.motoiq.com/magazine_artic...ferential.aspx


edit: OP since you're in Portland, you might try giving HPF a call if that's the route you want to take. They use the OS Giken on their stage 4 M3s...

I tried calling HPF but they wouldnt work on my car. Thay said they arnt a general public repair facility..???

[AYF80]

Yeah, I think they stick to Kits and big installs/ builds. Plus they are slammed right now; I’d call and ask them who they recommend then.

[C00kedG00se]

I'd be interested in who they (HPF) recommend too (if you wouldn't mind posting)

[HP Autosport]

Originally Posted by dzenno

I've got a 6mt dec 2007 production E90...welded or bolted ring gear? Who to order from?

Your VIN can determine what you have in the car.

[HP Autosport]

Originally Posted by rolling18

I tried calling HPF but they wouldnt work on my car. Thay said they arnt a general public repair facility..???

If you don't mind the drive to WA. Try:

Speedware Motorsports
Automotive Service Center:
9042 Willows RD NE
Redmond, WA 98052
Service Phone: 425-296-5199


They have done installs for us and is on our recommended installers list. Tell them HP Autowerks sent you.

[zsapphire7]

no "lifetime" is not your lifetime. Search it, if the lifetime of the product is 2-3 years, then the warranty is 2-3 years. It's a little bit misleading